Coupeville
Washington, USA
Long-term weather forecast
Long-term weather forecast

Monthly weather forecast and climate
Coupeville, WA

January, like December, is another chilly winter month in Coupeville, Washington, with average temperature varying between 44.4°F (6.9°C) and 34.2°F (1.2°C). The coldest month is January, with an average high-temperature of 44.4°F (6.9°C) and an average low-temperature of 34.2°F (1.2°C). Weather in January »
February, the last month of the winter, in Coupeville, is another chilly month, with average temperature varying between 48°F (8.9°C) and 35.1°F (1.7°C). In February, the average high-temperature is almost the same as in January - a still chilly 48°F (8.9°C). Weather in February »

March, the first month of the spring, in Coupeville, is a cool month, with average temperature varying between 36.9°F (2.7°C) and 52°F (11.1°C). In March, the average high-temperature is almost the same as in February - a fresh 52°F (11.1°C). Weather in March »

April is a moderate spring month in Coupeville, Washington, with temperature in the range of an average low of 40.1°F (4.5°C) and an average high of 57.4°F (14.1°C). In April, the average high-temperature slightly increases, from a fresh 52°F (11.1°C) in March, to a moderate 57.4°F (14.1°C). Weather in April »

The last month of the spring, May, is an enjoyable month in Coupeville, Washington, with average temperature fluctuating between 44.4°F (6.9°C) and 62.8°F (17.1°C). In Coupeville, the average high-temperature in May marginally rises, from a moderate 57.4°F (14.1°C) in April, to a comfortable 62.8°F (17.1°C). Weather in May »

The first month of the summer, June, is still a comfortable month in Coupeville, Washington, with temperature in the range of an average high of 67.3°F (19.6°C) and an average low of 48.4°F (9.1°C). In June, the average high-temperature is essentially the same as in May - a still enjoyable 67.3°F (19.6°C). Weather in June »

July in Coupeville, Washington, is a pleasant summer month, with average temperature varying between 71.8°F (22.1°C) and 50.5°F (10.3°C). In July, the average high-temperature is essentially the same as in June - a pleasant 71.8°F (22.1°C). Weather in July »

August, the last month of the summer, in Coupeville, is another pleasant month, with average temperature fluctuating between 50.5°F (10.3°C) and 72°F (22.2°C). With an average high-temperature of 72°F (22.2°C) and an average low-temperature of 50.5°F (10.3°C), August is the warmest month. Weather in August »

The first month of the autumn, September, is also an enjoyable month in Coupeville, Washington, with temperature in the range of an average high of 66.9°F (19.4°C) and an average low of 47.1°F (8.4°C). In Coupeville, Washington, the average high-temperature is essentially the same as in August - a comfortable 66.9°F (19.4°C). Weather in September »

October, the same as September, in Coupeville, Washington, is a moderate autumn month, with average temperature ranging between max 58.3°F (14.6°C) and min 42.8°F (6°C). In October, the average high-temperature slightly decreases, from an enjoyable 66.9°F (19.4°C) in September, to a mild 58.3°F (14.6°C). Weather in October »

The last month of the autumn, November, is also a frosty month in Coupeville, Washington, with temperature in the range of an average low of 38.1°F (3.4°C) and an average high of 49.8°F (9.9°C). In November, the average high-temperature marginally drops, from a mild 58.3°F (14.6°C) in October, to a frosty 49.8°F (9.9°C). Weather in November »

The first month of the winter, December, is also a frosty month in Coupeville, Washington, with average temperature fluctuating between 35.8°F (2.1°C) and 45.5°F (7.5°C). In Coupeville, the average high-temperature is practically the same as in November - a still frosty 45.5°F (7.5°C). Weather in December »

What is the coldest month in Coupeville?

January is the coldest month in Coupeville, Washington, with an average high-temperature of 44.4°F (6.9°C) and an average low-temperature of 34.2°F (1.2°C).

How many days does it rain in Coupeville?

Throughout the year, in Coupeville, Washington, there are 131 rainfall days, and 20.2" (513.2mm) of precipitation is accumulated.

When does it snow in Coupeville?

Months with snowfall in Coupeville are January through March, November and December.

How much does it snow in Coupeville?

In Coupeville, Washington, during the entire year, snow aggregates up to 6.1" (155mm).

When does it snow the most in Coupeville?

January is the month with the most snowfall in Coupeville, Washington, with 2.5" (63.5mm) of accumulated snow.

What months are the ocean coldest in Coupeville?

Months with the coldest seawater are January, February and April, with an average ocean temperature of 45.1°F (7.3°C). At temperatures below 50°F (10°C), swimming in a suitably protected swimsuit is feasible; otherwise, cold shock and loss of breathing control are imminent. Even a short swim, without thermal protection, at temperatures around 55.4°F (13°C) is not comfortable.

When are the longest days in Coupeville?

With an average of 16h of daylight, June has the longest days of the year in Coupeville.

What is the driest month in Coupeville?

The month with the least rainfall in Coupeville is July when the rain falls for 5 days and typically collects 0.7" (18.8mm) of precipitation.

What is the warmest month in Coupeville?

The warmest month in Coupeville, Washington, is August, with an average high-temperature of 72°F (22.2°C) and an average low-temperature of 50.5°F (10.3°C).

When is the ocean warmest in Coupeville?

Months with the warmest seawater in Coupeville are August and September, with an average ocean temperature of 53.1°F (11.7°C). Swimming in 53.1°F (11.7°C) is considered life-threatening. Even a few minutes in 55.4°F (13°C) water is uncomfortable, and swimming below 50°F (10°C) may cause total loss of breathing control and cold shock, depending on a person's physique.

What is the rainiest month in Coupeville?

The month with the most rainfall is December when the rain falls for 17 days and typically aggregates up to 2.7" (68.3mm) of precipitation.

What is the month with the shortest days in Coupeville?

The month with the shortest days is December, with an average of 8.4h of daylight.
Average temperature - Coupeville, WA
Average rainfall - Coupeville, WA
Average rainfall days - Coupeville, WA
Average snowfall - Coupeville, WA
Average sea temperature - Coupeville, WA

The best month for swimming (with the highest average sea temperature) is August (53°F).
The coldest month (with the lowest average sea temperature) is February (45°F).

Average daylight - Coupeville, WA